ossimJpegYCbCrVector Class Reference

#include <ossimJpegYCbCrVector.h>

Public Member Functions
	ossimJpegYCbCrVector (unsigned char Y=0, unsigned char Cb=0, unsigned char Cr=0)
	ossimJpegYCbCrVector (const ossimRgbVector &)
long	clamp (long colorValue, unsigned char min=0, unsigned char max=255) const
ossimJpegYCbCrVector &	operator= (const ossimRgbVector &)
unsigned char	getY () const
unsigned char	getCb () const
unsigned char	getCr () const
void	setY (unsigned char Y)
void	setCb (unsigned char Cb)
void	setCr (unsigned char Cr)

Protected Attributes
unsigned char	theBuf [3]

Friends
ostream &	operator<< (ostream &out, const ossimJpegYCbCrVector &data)

Detailed Description

Definition at line 18 of file ossimJpegYCbCrVector.h.

Constructor & Destructor Documentation

ossimJpegYCbCrVector() [1/2]

ossimJpegYCbCrVector::ossimJpegYCbCrVector ( unsigned char  Y = 0, unsigned char  Cb = 0, unsigned char  Cr = 0  )

inline

Definition at line 30 of file ossimJpegYCbCrVector.h.

      {
         theBuf[0] = Y;
         theBuf[1] = Cb;
         theBuf[2] = Cr;
      }

ossimJpegYCbCrVector() [2/2]

ossimJpegYCbCrVector::ossimJpegYCbCrVector

(

const ossimRgbVector &

rgbColor

)

Definition at line 6 of file ossimJpegYCbCrVector.cpp.

References clamp(), ossimRgbVector::getB(), ossimRgbVector::getG(), ossimRgbVector::getR(), and theBuf.

{
   theBuf[0] = static_cast<unsigned char>(clamp(ossim::round<int>(0.299*rgbColor.getR() +
                                          0.587*rgbColor.getG() +
                                          0.114*rgbColor.getB())));
   
   theBuf[1] = static_cast<unsigned char>(clamp(ossim::round<int>((-0.1687)*rgbColor.getR() -
                                                0.3313*rgbColor.getG() +
                                                0.5*rgbColor.getB() + 128)));
   
   theBuf[2] = static_cast<unsigned char>(clamp(ossim::round<int>(0.5*rgbColor.getR() -
                                                      .4187*rgbColor.getG() -
                                                      .0813*rgbColor.getB() + 128)));
   
}

Member Function Documentation

clamp()

long ossimJpegYCbCrVector::clamp ( long  colorValue, unsigned char  min = 0, unsigned char  max = 255  ) const

inline

Definition at line 41 of file ossimJpegYCbCrVector.h.

References max, and min.

Referenced by operator=(), and ossimJpegYCbCrVector().

      {
         colorValue = colorValue > max? max:colorValue;
         colorValue = colorValue < min? min:colorValue;

         return colorValue;
      }

getCb()

unsigned char ossimJpegYCbCrVector::getCb ( ) const

inline

Definition at line 53 of file ossimJpegYCbCrVector.h.

Referenced by ossimRgbToJpegYCbCrSource::getTile(), ossimNormRgbVector::operator=(), ossimRgbVector::operator=(), and ossimRgbVector::ossimRgbVector().

{ return theBuf[1]; }

getCr()

unsigned char ossimJpegYCbCrVector::getCr ( ) const

inline

Definition at line 54 of file ossimJpegYCbCrVector.h.

Referenced by ossimRgbToJpegYCbCrSource::getTile(), ossimNormRgbVector::operator=(), ossimRgbVector::operator=(), and ossimRgbVector::ossimRgbVector().

{ return theBuf[2]; }

getY()

unsigned char ossimJpegYCbCrVector::getY ( ) const

inline

Definition at line 52 of file ossimJpegYCbCrVector.h.

Referenced by ossimRgbToJpegYCbCrSource::getTile(), ossimNormRgbVector::operator=(), ossimRgbVector::operator=(), and ossimRgbVector::ossimRgbVector().

{ return theBuf[0]; }

operator=()

ossimJpegYCbCrVector & ossimJpegYCbCrVector::operator=

(

const ossimRgbVector &

rgbColor

)

Definition at line 22 of file ossimJpegYCbCrVector.cpp.

References clamp(), ossimRgbVector::getB(), ossimRgbVector::getG(), ossimRgbVector::getR(), and theBuf.

{
   theBuf[0] = static_cast<unsigned char>(clamp(ossim::round<int>(0.299*rgbColor.getR() +
                                                0.587*rgbColor.getG() +
                                                0.114*rgbColor.getB())));
   
   theBuf[1] = static_cast<unsigned char>(clamp(ossim::round<int>((-0.1687)*rgbColor.getR() -
                                                      0.3313*rgbColor.getG() +
                                                      0.5*rgbColor.getB() + 128)));
   
   theBuf[2] = static_cast<unsigned char>(clamp(ossim::round<int>(0.5*rgbColor.getR() -
                                                      .4187*rgbColor.getG() -
                                                      .0813*rgbColor.getB() + 128)));
   
   return *this;
}

setCb()

void ossimJpegYCbCrVector::setCb ( unsigned char  Cb )

inline

Definition at line 56 of file ossimJpegYCbCrVector.h.

{ theBuf[1] = Cb; }

setCr()

void ossimJpegYCbCrVector::setCr ( unsigned char  Cr )

inline

Definition at line 57 of file ossimJpegYCbCrVector.h.

{ theBuf[2] = Cr; }

setY()

void ossimJpegYCbCrVector::setY ( unsigned char  Y )

inline

Definition at line 55 of file ossimJpegYCbCrVector.h.

{ theBuf[0] = Y; }

Friends And Related Function Documentation

operator<<

ostream& operator<< ( ostream &  out, const ossimJpegYCbCrVector &  data  )

friend

Definition at line 21 of file ossimJpegYCbCrVector.h.

      {
         out << "<" << (long)data.theBuf[0] << ", "
             << (long)data.theBuf[1] << ", "
             << (long)data.theBuf[2] << ">";

         return out;
      }

Member Data Documentation

theBuf

unsigned char ossimJpegYCbCrVector::theBuf[3]

protected

JpegYCbCr is an 8-bit YCbCr color model. We will let: buf[0] = Y buf[1] = Cb buf[2] = Cr

Definition at line 67 of file ossimJpegYCbCrVector.h.

Referenced by operator=(), and ossimJpegYCbCrVector().

---

The documentation for this class was generated from the following files:

• ossimJpegYCbCrVector.h
• ossimJpegYCbCrVector.cpp